moved all console functions in class Shell

Msh.pro

@@ -7,10 +7,10 @@ SOURCES += main.cpp \
     command.cpp \
     commands.cpp \
     cmds.cpp \
-    console.cpp
+    shell.cpp
 
 HEADERS += \
     command.h \
     commands.h \
-    cmds.h \
-    console.h
+    shell.h \
+    cmds.h

cmds.cpp

@@ -7,21 +7,21 @@ using namespace std;
 
 int Cmds::cdExecute(const vector<string>* args){
   if (args->operator[](1) == "\0") {
-    cerr << "msh: expected argument to \"cd\"\n";
+    cerr << "expected argument to \"cd\"\n";
   } else {
     if (chdir(args->operator[](1).c_str()) != 0) {
-      cerr << "msh";
+      cerr << "error";
     }
   }
   return 1;
 }
 
 int Cmds::exitExecute(const vector<string>*){
-  std::exit(0);
+  return 0;
 }
 
 int Cmds::helpExecute(const vector<string>*){
-    cout << "Msh info" << endl;
+    cout << " info" << endl;
     return 1;
 }
 

cmds.h

@@ -1,9 +1,6 @@
-/**
-  builtin commands
-*/
-
 #ifndef CMDS_H
 #define CMDS_H
+
 #include <iostream>
 #include <vector>
 #include <string>

commands.cpp

@@ -6,11 +6,6 @@ Commands::Commands()
 {
     if(created) throw CommandsAlreadyCreatedException();
     created=true;
-
-    //add builtin commands
-    add(new Command("cd", &cdExecute));
-    add(new Command("exit", &exitExecute));
-    add(new Command("help", &helpExecute));
 }
 
 void Commands::add(Command* cmd){
@@ -22,7 +17,7 @@ size_t Commands::howMany(){
 }
 
 int Commands::launch(const vector<string>* args){
-    for(int i=0; i<commands.size(); i++){
+    for(unsigned int i=0; i<commands.size(); i++){
         if((commands[i]->getName())==args->operator [](0)){
             return commands[i]->execute(args);
         }
@@ -32,5 +27,4 @@ int Commands::launch(const vector<string>* args){
 
 bool Commands::created = false;
 
-//builtin commands
 

console.h

@@ -1,35 +0,0 @@
-#ifndef CONSOLE_H
-#define CONSOLE_H
-
-#include <sys/wait.h>
-#include <unistd.h>
-#include <cstdlib>
-#include <sstream>
-#include <cstdio>
-#include <string>
-#include <cstring>
-#include <vector>
-#include <iostream>
-#include <csignal>
-#include <commands.h>
-using std::cin;
-using std::cout;
-using std::cerr;
-using std::string;
-using std::vector;
-using std::istringstream;
-
-
-namespace Console{
-    extern Commands cmds;
-
-    class IsUndoingLineException {};
-
-    int launch(vector<string>* args);
-    int execute(vector<string>* args);
-    void mshEofHandler(int);
-    string* read_line();
-    vector<string>* split_line(string* line);
-    void loop();
-}
-#endif // CONSOLE_H

main.cpp

@@ -1,17 +1,27 @@
-#include "console.h"
 #include <cstdlib>
+#include <iostream>
+#include "shell.h"
+#include "command.h"
+#include "cmds.h"
 using namespace std;
+using namespace Cmds;
+
+static void setup(Shell *);
 
 int main(int argc, char **argv)
 {
-  // Load config files, if any.
-
-  // Run command loop
-
-  Console::loop();
-
-  // Perform any shutdown/cleanup.
+    string c = "msh-console-test";
+    string ps = "[msh-console-test]:";
+    Shell mshConsoleTest(c, ps, &setup);
 
+    //add builtin commands
+    mshConsoleTest.addCmd(new Command("cd", &cdExecute));
+    mshConsoleTest.addCmd(new Command("exit", &exitExecute));
+    mshConsoleTest.addCmd(new Command("help", &helpExecute));
+    mshConsoleTest.loop();
     return EXIT_SUCCESS;
 }
 
+void setup(Shell *){
+    cout << "Now entering in test shell...\n" << endl;
+}

shell.cpp

@@ -1,8 +1,59 @@
-#include "console.h"
+#include "shell.h"
 
-Commands Console::cmds;
+string Shell::getPs() const
+{
+    return ps;
+}
 
-int Console::launch(vector<string>* args)
+void Shell::setPs(const string &value)
+{
+    ps = value;
+}
+
+string Shell::getName() const
+{
+    return name;
+}
+
+void Shell::setName(const string &value)
+{
+    name = value;
+}
+
+Shell::Shell( string n, string ps,void (*s)(Shell*)) : cmds()
+{
+    shellSetup = s;
+    name = n;
+    this->ps = ps;
+}
+
+void Shell::loop(){
+  //launch setup
+  if(shellSetup!=0) (*shellSetup)(this);
+
+  //launch loop
+  string* line;
+  vector<string>* args;
+  int status;
+  do {
+    bool readSuccess;
+    do{
+        cout << ps << " ";
+        try{
+            line = read_line();
+            readSuccess = true;
+        }
+        catch (IsUndoingLineException){
+            cout << "\n";
+            readSuccess = false;
+        }
+    }while(!readSuccess);
+    args = split_line(line);
+    status = execute(args);
+  } while (status);
+}
+
+int Shell::launch(vector<string>* args)
 {
     pid_t pid;
     int status;
@@ -17,13 +68,13 @@ int Console::launch(vector<string>* args)
     }
     argv[i] = NULL;
     if(execvp(argv[0], argv.data()) == -1) {
-        cerr << "msh: command " << args->operator [](0) << " not found\n";
+        cerr << name <<": command " << args->operator [](0) << " not found\n";
     }
     exit(EXIT_FAILURE);
     }
     else if (pid < 0) {
         // Error forking
-        cerr << "msh: error forking\n";
+        cerr << name <<": error forking\n";
     }
     else {
         // Parent process
@@ -34,7 +85,7 @@ int Console::launch(vector<string>* args)
     return 1;
 }
 
-int Console::execute(vector<string>* args)
+int Shell::execute(vector<string>* args)
 {
   if (args->operator [](0) == "\0") {
     // An empty command was entered.
@@ -50,21 +101,22 @@ int Console::execute(vector<string>* args)
   return a;
 }
 
-
-
-bool undoingLine=false;
-
-void Console::mshEofHandler(int){
+void Shell::EofHandler(int){
     undoingLine = true;
 }
 
-string* Console::read_line()
-{
-    string* buffer = new string();
+void setEofHandler(void (*funcptr)(int)){
     struct sigaction *sa = new struct sigaction();
-    sa->sa_handler = mshEofHandler;
+    sa->sa_handler = funcptr;
     sa->sa_flags = 0; // not SA_RESTART!;
     sigaction(SIGINT, sa, NULL);
+    delete sa;
+}
+
+string* Shell::read_line()
+{
+    string* buffer = new string();
+    setEofHandler(EofHandler);
     getline(cin,*buffer); // get command
     cin.clear();  // clear flags
 
@@ -72,11 +124,10 @@ string* Console::read_line()
         undoingLine=false;
         throw IsUndoingLineException();
     }
-
     return buffer;
 }
 
-vector<string>* Console::split_line(string* line)
+vector<string>* Shell::split_line(string* line)
 {
     vector<string>* tokens = new vector<string>();
     string ln = *line;
@@ -89,24 +140,12 @@ vector<string>* Console::split_line(string* line)
     return tokens;
 }
 
-void Console::loop(){
-  string* line;
-  vector<string>* args;
-  int status;
-  do {
-    bool readSuccess;
-    do{
-        cout << "MSH$ ";
-        try{
-            line =  read_line();
-            readSuccess = true;
+bool Shell::undoingLine = false;
+
+void Shell::addCmd(Command* cmd){
+    cmds.add(cmd);
 }
-        catch (IsUndoingLineException){
-            cout << "\n";
-            readSuccess = false;
-        }
-    }while(!readSuccess);
-    args = split_line(line);
-    status = execute(args);
-  } while (status);
+
+size_t Shell::howManyCmds(){
+    return cmds.howMany();
 }

shell.h

@@ -0,0 +1,50 @@
+#ifndef SHELL_H
+#define SHELL_H
+#include <iostream>
+#include <sys/wait.h>
+#include <unistd.h>
+#include <cstdlib>
+#include <sstream>
+#include <string>
+#include <cstring>
+#include <vector>
+#include <csignal>
+#include <commands.h>
+using std::string;
+using std::cin;
+using std::cout;
+using std::cerr;
+using std::string;
+using std::vector;
+using std::istringstream;
+using std::nullptr_t;
+
+class Shell
+{
+    static bool undoingLine;
+    Commands cmds;
+    string ps;
+    string name;
+    void (*shellSetup)(Shell *);
+
+    class IsUndoingLineException {};
+
+    int launch(vector<string>* args);
+    int execute(vector<string>* args);
+    static void EofHandler(int);
+    string* read_line();
+    vector<string>* split_line(string* line);
+public:
+    Shell( string n="msh", string ps="MSH$",void (*s)(Shell*)=0);
+    string getPs() const;
+    void setPs(const string &value);
+    string getName() const;
+    void setName(const string &value);
+    void loop();
+
+    //for in-shell commands
+    void addCmd(Command *cmd);
+    size_t howManyCmds();
+};
+
+#endif // SHELL_H